Cotter pin



[the like of differing The invention consists in the" details of ings.

the pin as illustrated in Figure Patented Sept. 19 I922.

' UNITED srA'rEs JOSEPH S. KARSKY, OF OWEN, WISCONSIN.

COTTER PIN.

Application filed May 1, 1922. Serial No. 557,805.

To all whom it may concern Be it known that JOSEPH S. KARsKY, a citizen of the United States, residing at Owen, in the county of Clark and State of lVisconsin, has invented certain new and useful Improvements in Cotter Pins, of which the followingjs a specification, reference being had to the accompanying draw- This invention relates to certain improvements in cotter pins and it is an object of the invention to provide a device of this general character having novel and improved means whereby the same is automatically locked in applied position.

Another object of the invention is to provide a novel. and improved device of this general character which is of a self locking type and which can be employed w1th\ equal facility in connection with shafts or diameters.

construction and in the combination and arrangement of the several parts of my improved cotter pin whereby certain important advantages are attainedand the device rendered simpler, less expensive and otherwise more convenient and advantageous for use, asv will be hereinafter more fully set forth.

The novel features of my invention will hereinafter be definitely claimed.

In order that my invention may be the better understood I will now proceed to describe the same with reference to the ac-- companying drawings, wherein: Y

Figure 1 is an enlarged view partly in section and partly in elevation illustrating a cotter pin constructed in accordance with an embodiment of my invention and in applied: position,

Figure 2 is a view in side elevation of Figure 3 is an enlarged View partly in section and partly ii elevation showing my improved pin applied to a shaft of a diameter less than the diameter of the shaft hown in Figure 1, and

Figure 4 is across sectional view taken through the pin as herein disclosed.

As disclosed in the accompanying drawings my improved pin comprises a split shank providing separate legs 1 connected the loop 2, such structure being the same-as in cotter pins of a conventional type. The legs 1 together and it will also be with the loop 2 possesses a certain degree of inherent resiliency so that the natural tendency of the legfl is to separate. The free end portions of the legs 1 are provided with oppositely directed teeth 3 coplanar with the loop 2. The teeth 3 of each of the legs straight edge or shoulder 15 in substantially perpendicular relation to the associated leg 1 The edges or shoulders I) are successively of greater lengths with the shoulder or edge 6 of the least length being innermos through a shaft or the like of a diameter substantially one and one-fourth inches while the outer teeth 3' are positioned to function when the shaft or the like is of a diameter substantiallgu one and one-half inches. 1

Each of the legs 1 is substantially half round in cross section with the flattened edge opposed to the flattened edge of the sec-- ond leg and each of said legs is slightly tapered toward the free extremity thereof in order to facilitate the application of the pin in working position.

From the thought to be obvious that a cotter pin constructed in accordance with my invention is particularly 'well'adapted for use by reason of the convenience and facility with,

operated,

which it may be assembled and obvious that my invention is susceptible of some change and modi fication without departing from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice except as hereinafter claimed.

I claim: e I

1. As a new article of maniifacture, a

cotter 'pin comprising a split shank provid ing separated legs, the legs being the free extremities of provided with outstanding foregoing description it is teeth, said teeth successively being of greater len S.

2. As a new article of manufacture,

rising, a split shank providcotter pin comp the free extremities of signature.

5 ing separated legs,

the legs being. provi teeth, saidlteeth being of ratchet form with I a teeth being successively of greater lengths. 10

In testimony whereof I hereunto afiix my ded with outstanding v JOSE-PH S. KARSKY. 

